code: def setUp(self):
      self.corpus = MmCorpus(datapath("testcorpus.mm"))
  
file_path: gensim/gensim/test/test_tfidfmodel.py
imports: import logging
  import unittest
  import numpy
  from gensim.corpora.mmcorpus import MmCorpus
  from gensim.models import tfidfmodel
  from gensim.test.utils import datapath, get_tmpfile, common_dictionary, common_corpus
  from gensim.corpora import Dictionary
label_desc: Use image node_id 1 for calling the TestTfidfModel obj's underlying member method code with example usage: obj.setUp() without return types